CN101029459A - Technology for producing ligin by crop straw refuse - Google Patents
Technology for producing ligin by crop straw refuse Download PDFInfo
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- CN101029459A CN101029459A CNA2006100081911A CN200610008191A CN101029459A CN 101029459 A CN101029459 A CN 101029459A CN A2006100081911 A CNA2006100081911 A CN A2006100081911A CN 200610008191 A CN200610008191 A CN 200610008191A CN 101029459 A CN101029459 A CN 101029459A
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- lignin
- crop straw
- technology
- straw refuse
- ligin
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- Processing Of Solid Wastes (AREA)
Abstract
Production of lignin from agricultural straw refuse is carried out by heating in modified 1.4-butanediol solution by agricultural straw refuse, hydrolyzing for semi-cellulose under action of catalyst, breaking, dissolving in modified high-boiling-point organic solvent and separating from cellulose.
Description
Technical field
The present invention relates to the crop straw refuse is the technology of feedstock production lignin.
Background technology
The agricultural straw resource owning amount occupies first place in the world, and produces 600000000 tons of stalks per year, wherein 42% directly or indirectly goes back the field, and 30% as agricultural fuel, and 8% as industry or other purposes, and 20% about 1.2 hundred million tons of residues are not utilized.Agricultural crop straw is made up of cellulose, hemicellulose and three kinds of macromolecular compounds of lignin, and general total amount accounts for more than 90%.Lignin is to the human kind sustainable development major contribution organic substance source that just is to provide stable, continues the most.The research of relevant lignin, the overwhelming majority are at the separation of the lignin in traditional black liquid and application.
Summary of the invention
In order to solve the problem that the crop stalk discarded object can't rationally utilize, the present invention proposes to study the scheme of extracting this renewable resource of lignin with high boiling organic solvent from agricultural waste material.
The technical scheme that lignin of the present invention adopted:
1. utilize crop straw refuse hemicellulose generation hydrolysis, fracture under modification 1.4-butanediol heated in water solution and catalyst action.
2. lignin dissolves in modification 1.4-butanediol solvent and separates with cellulose.
Lignin is directly as macromolecule modified auxiliary agent, the cellulose of also can be processing modified separating for the additive of multiple high added value can be used for papermaking, make plate or prepare cellulose derivative.Lignin can be used for the property-modifying additive of macromolecular material after the reprocessing modification, can be used for rubber, plastics, dyestuff dispersing aid, cement dispersants etc.
Specific embodiments
Implementation process is to utilize crop straw refuse hemicellulose generation hydrolysis, fracture under modification 1.4-butanediol heated in water solution and catalyst action, and lignin dissolves in modification 1.4-butanediol solvent and gets lignin liquor with the cellulose separation value.
Claims (2)
1, a kind of technology for producing ligin by crop straw refuse is characterized by with high boiling organic solvent and extract this renewable resource of lignin from agricultural waste material.
2, technology for producing ligin by crop straw refuse according to claim 1, its feature: utilize crop straw refuse hemicellulose generation hydrolysis, fracture under modification 1.4-butanediol heated in water solution and catalyst action, lignin dissolves in modification 1.4-butanediol solvent and gets lignin liquor with the cellulose separation value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2006100081911A CN101029459A (en) | 2006-02-27 | 2006-02-27 | Technology for producing ligin by crop straw refuse |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2006100081911A CN101029459A (en) | 2006-02-27 | 2006-02-27 | Technology for producing ligin by crop straw refuse |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101029459A true CN101029459A (en) | 2007-09-05 |
Family
ID=38714996
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2006100081911A Pending CN101029459A (en) | 2006-02-27 | 2006-02-27 | Technology for producing ligin by crop straw refuse |
Country Status (1)
| Country | Link |
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| CN (1) | CN101029459A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101538743B (en) * | 2009-04-28 | 2011-07-27 | 福建海博斯化学技术有限公司 | Solvent method for biologically preparing bamboo fiber |
| CN105198262A (en) * | 2015-09-11 | 2015-12-30 | 江苏锦宇环境工程有限公司 | Method for preparing efficient concrete water reducing agent by utilizing papermaking black liquid |
| CN109535442A (en) * | 2018-11-27 | 2019-03-29 | 重庆从化科技有限公司 | With the method for organic solvent separating lignin, cellulose and hemicellulose from stalk |
| CN109776697A (en) * | 2017-11-13 | 2019-05-21 | 中国科学院大连化学物理研究所 | A method of cellulose, hemicellulose and lignin in separation sawdust and stalk |
-
2006
- 2006-02-27 CN CNA2006100081911A patent/CN101029459A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101538743B (en) * | 2009-04-28 | 2011-07-27 | 福建海博斯化学技术有限公司 | Solvent method for biologically preparing bamboo fiber |
| CN105198262A (en) * | 2015-09-11 | 2015-12-30 | 江苏锦宇环境工程有限公司 | Method for preparing efficient concrete water reducing agent by utilizing papermaking black liquid |
| CN105198262B (en) * | 2015-09-11 | 2017-09-29 | 佛山市三水区永华利建材有限公司 | A kind of method that utilization black liquid prepares efficient cement water reducing agent |
| CN109776697A (en) * | 2017-11-13 | 2019-05-21 | 中国科学院大连化学物理研究所 | A method of cellulose, hemicellulose and lignin in separation sawdust and stalk |
| CN109535442A (en) * | 2018-11-27 | 2019-03-29 | 重庆从化科技有限公司 | With the method for organic solvent separating lignin, cellulose and hemicellulose from stalk |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |